Method of assembling bed and cushion springs



Nov. 17, 1931. G. A. s'rAcKHoysE 1,832,149

METHOD OF ASSEMBLING BED AND CUSHION SPRINGS Filed April 14, 1930 2 Sheets-Sheet l INVENTOR 0 NE VS Nov. 17, 1931. e. A. STACKHOUSE 1,832,149

METHOD OF ASSEMBLING BED AND CUSHION SPRINGS Filed April 14. 1930 2 Sheets-Sheet 2 [N VENTOR A TTORNE Yg Patented Nov. 17, 193i U-NlTED STATES PATENT orrlca enonen A. s'rncmousn, or osxmnn, camroimm. 'sssrenon. r 1.. A. tonne srnme a wmn eonroaarron, or 'narnorr, MICHIGAN METHOD 0] ASBEMIBLING BED AIbTD CUSHION SPRINGS Application. fled April 14, IOBOI Serial Kc. 448,848. I

I The main objects of this invention are to provide amethod of assembling. helically coiled springs with a supporting base and center tie which enables very rapid assei'n bling and also. results in a very stable and effective support for the springs.

Objects relating to details and economies of my invention will appear from the description to follow. The invention is defined and pointed out inthe claims.

A structure which is a preferred embodiment of my invention is illustrated in the acfcompanying drawings, in which:

Fig. lis a fragmentary sectional bed spring assembled by metho Fig. 2 is an enlarged fragmentary section on line 2-2 of Fig. 1.

Fig. 3 is a fragmentary planview, the base view ofa my improved 4 unit being omitted.

Fig. 4 is a fragmentary perspective view illustrating the initial or first step in the assembling of the springs.

Fig. 5 is a fragmentary view illustratingthe second step, and a Fig. 6 is a fragmentary view illustrating the third or final step. J

The spring structure assembled by my method comprises a base unit consisting of side rails 1, cross bars 2 disposed on edge and preferably having a series of spaced notches 3 on its u per edge andcross wires 4 hav ng loop-like fiends 5 therein engaging these cross bars, these cross wires being arranged to engage the recesses 3.

I also provide a center tie unit consisting of a border frame 6 and crossed wires 7 forming a id-like stretcher, these crossed wires. 7 being preferably have oppositely disposed ofi'sets 8 at their crossing points so that the wires 7 lie m sub- I stantially the same plane.

The body springs 9 are of the hehcally coiled type and have intermediate coils 10 of bars'2'at points intermediate the of hard or spring stock and a reduced pitch providing center tie clampmg members or coils, so that the springs may be threaded upon the center. tie membeiiiat its crossing point and rotated to bring these center tie clamping coils into engagement withthe center tie .wires thereby supporting the springs at intermediate points.

.To accomplish this in an effective and rapid way, the bottom coils '11 of-the springs are engaged with the'center tie wires at their crossing point by hand, as illustrated in Fig. 4.. Theconical chuck 12 is then introduced into the upper coils of the springs, this being provided with. a shank 13 connected: tothe shaftl4 of the motor 15 which is of such size that it can be readily manipulated. The electrical connections are not illustrated.

This motor rapidly drives the spring downward by rotating it so that in efi'ect a screw action takes place until the stop 16 comes into engagement'with the center tie members in which position the bottom coil 11 may be engaged with the crossed members of the base unit at their crossing point, the top coil resting'in the notches 3 of the bearing 2 and being engaged under the base wires 4, thereby locking the base wires to the bars 2 andalso effectively securing the lower ends of the springs to the base unit.

The springs are thus supported without the necessity for further ties although of course the upper springs may be connected by ties as desired to provide a mattress supporting surface.

My method of assembling springs enables" vprovided with an adjustable center tie engaging stop at its inner end, and then enbe gagingthe bottom coils of the s rings withc the bottom supportingunit at t e crossing a points of its members.

2. The method of assembling helically coiled springs having adjacent intermediate coils ofreduced pitch providing center tie clamping members with a base unit comprism crossed members and with a center tie .umt comprising crossed wires, consisting of 1 initially enga ng the bottom. coils of the I s rings'with t e crossed wires of the center tie unit at their crossing pomts, msertmg a rotatably driven conical member into the upper ends of the s rings whereby they are rotated, bringing t eir said center tie clampingmember C0113 1nto engagement with the center tie unit, andthenenga mg the bottom coils of the springs with the ottom supportserting 3 into t they are rotated, bringing t eir said center igig unit at the crossing .points of its memers. V 3. The method of assembling helically coiled springs having adjacent intermediate coils of reduced pitch providing. center tie clamping members with a base'unit comprisin'g crossed members and with a center tie unit comprisin crossed wires having'opposite offsets at t eircrossing points, consisting of initially engaging the bottom coils of the springs with the crossed wires of the center tie unit at their crossing points, in-

a rotatabl e upper en s of the rings whereby tie clamping member coils into engagement with the center tie unit, and then engaging the bottom coils of the springs :with the bottom supporting unit at the crossing points of its members.

4. The method "ofassembling helically -coiled springs having adjacent intermediate co ls of reduced pitch with a base unit com- 1 prising crossed members and with a center} tie comprising crossed wires, consisting of 1n1tially engaging the bottom coils of the springs withthe crossed wires of the center tieunit, rotating the springs by means'of a rotatably driven chuck member inserted in their upper ends, said chuck member being provided with a center tie engaging stop at its inner end, and engaging the bottom coils of the spring with. the bottom supporting unit at the crossing points of'its members.

5. The method of assembling helically coiled springs with a base unit comprising p'rislng crossed wires having opposite ofi'sets driven conical member crossedmembers and with a center tie unit comprising crossed wires, consistin of initially engaging the bottom coils o the s rings with the crossed wires of the center '0 tie unit, rotating the springs by means of a rotatably driven chuck member inserted in" their upper ends, and enga ing the bottom coils of the springs with the ottom support: ing unit at the crossing points of its mem- 6. The method of assembling helically coiled springs with a base unit and a central tie unit comprising crossed wires consisting of initiallyen aging the bottom coils of the springs with t e crossed wires of the center 1 tie unit, rotating the springs by means of a driven chuck'to brin their lower ends into position to'be secure to the base unit, and securing to the base unit.

7. The method of assembling helically coiled springs having adjacent intermediate coils of reduced itch providing center tie clamping coils with a center tie unit comat their crossing points, consisting of initially engaging the bottom coils of the body springs with the crossed wires of the center tie unit at their crossing points, and insertj ing a. rotatable driven conical chuckmember.

prising crossed wires having opposite ofisets i at then crossing points, consisting of initial- 10 ly engaging the bottom coils of the body springs with the crossed wires of the center tie unit at their crossing points, and inserting a rotatable driven chuck member into the upper ends of the body springs and thereby rotating them until their said center tie,

clamping coils are brought into-engagement with the centertie unit.

9. The method of assembling helically coiled body springs having adjacent intermediate coils of reduced pitch providing center tie engaging coils with a center tie unit comprising crossed wires consisting of first T engaging the bottom coils of the springs with comprising crossed wires consisting of first 1 the crossedwires of the center tie unit at their crossing points, and then a engaging the bottom coils of the springs with rotatably' driven chuck member into the ends of the springs.

11. The method of assembling helically coiled bodysprin with a, center tie' unit comprising crosse wires.consist' of first engaging the bottom coils of the springs with the crossed wires of the center tie unit at their crossing points, and then inserting a rotatably driven chuck member into the ends of the springs, said chuck member having a.

' center t1e enga g stzip.

In witness w ereof have hereunto set-my hand.

GEORGE A. STACKHOUSEQ 

